A retired geochemist has been advocating the use of olivine for several years

A mysterious green rock has a unique property that could conceivably be the key to fighting climate change. Olivine is a beautiful mineral that has the ability to absorb CO2. Retired geochemist Olaf Schuiling says he believes olivine could remove enough CO2 from the atmosphere to make a serious dent, if not put an end to climate change. More